The latest game from ACE Team and Atlus hasn’t got a PlayStation Network release date pinned down yet (for now, it’s a simple “soon”), but Rock of Ages has made it over to Steam. This version includes bonus content like a familiar new boulder face type and the original soundtrack.
Having reviewed the Xbox Live Arcade version myself, I found Rock of Ages to be roughly as enjoyable as it is weird. If originality in gaming is what you seek, consider giving this a try.